Ante Up

If your opponent plays a spell which would destroy a permanent you control, roll a six-sided dice. If the result is one through three, target opponent must pay additional mana equal to the number rolled in order for the spell to resolve. If they can't, counter the spell. If the result is four through six, the spell resolves, and you must pay the original cost of the spell. If you can't, your opponent may draw cards equal to it's original cost.